Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 201-622-7 | CAS number: 85-68-7
Partition coefficient
Administrative data
Link to relevant study record(s)
Description of key information
The mean measured octanol-water partition coefficient (log Pow) of BBP is 4.84.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 4.84
- at the temperature of:
- 20 °C
Additional information
Measured log Pow values for BBP were obtained from our key studies (Leyder and Boulanger, 1983, and Gledhill et al, 1985) and supported by data from the International Chemical Safety Card for BBP. Leyder and Boulanger was a guideline study which determined a log Pow of 4.91 at 20 °C. The value given in Gledhill et al was log Pow 4.77 (this is also the value given in the International Chemical Safety Card for BBP) although there is no data on temperature. For the purposes of this assessment, the mean of these two values (log Pow 4.84) is considered to be representative. This value was also used in the EU Risk Assessment Report for BBP.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
